Back pressure:
Back pressure is the pressure of the outlet of valves. It increases the set pressure of proportional relief valves. RV and RM series: Balanced stem design to eliminate the effect of system back pressure.

Working temperature: -10°F to 300°F (-23°C to 148°C).

Variety of end connections.

Liquid or gas service.

Adjustable bonnet cap and adjustable set pressure.

Lead seal through lock wire holes to lock proportional relief valve so as to secure a set pressure effectively.